There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

Three people check into a hotel. They pay $60 for the rent of the room. After they check-in, the manager realize that the rent for the room is $55. So, he gives $5 to the bellboy and asks him to give it to them. The bellboy thinks that it will be difficult for the three people to share $5 among them and seeking the personal benefit, he pockets $2 and gives the remaining $3 to them.

Now, each person paid $20 and got back $1. In this manner, each of them paid just $19 which totals to the amount of $57. The bellboy has $2 with him and adding them, we get $59. So where is the remaining $1?

Can you count the number of quadrilaterals in the picture below?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

Four cars come to a four-way stop, each coming from a different direction. They can’t decide who got there first, so they all go forward at the same time. All 4 cars go, but none crash into each other. How is this possible?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?